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Responses of skeletal muscle to mechanical stimuli in female rats following and during muscle disuse atrophy.
J Appl Physiol (1985)
January 2025
Department Physical Therapy.
The purpose of this study was to investigate the ability of mechanotherapy to enhance recovery or prevent loss of muscle size with atrophy, in female rats. Female F344/BN rats were assigned to weight bearing (WB), hindlimb suspended (HS) for 14 days with reambulation for 7 days without (RA) or with (RAM) mechanotherapy (study 1), or to WB, HS for 7 days, with (HSM) or without mechanotherapy (study 2) to gastrocnemius. Muscle fiber cross sectional area (CSA) and type, collagen, satellite cell number, and protein synthesis (K) and degradation (K) were assessed.
View Article and Find Full Text PDFDeveloping a ceRNA-based lncRNA-miRNA-mRNA regulatory network to uncover roles in skeletal muscle development.
Front Bioinform
January 2025
Department of Biology and Chemistry, College of Sciences, National University of Defense Technology, Changsha, Hunan, China.
The precise role of lncRNAs in skeletal muscle development and atrophy remain elusive. We conducted a bioinformatic analysis of 26 GEO datasets from mouse studies, encompassing embryonic development, postnatal growth, regeneration, cell proliferation, and differentiation, using R and relevant packages (limma et al.).
View Article and Find Full Text PDFLangerhans cell histiocytosis in children: the value of ultrasound in diagnosis and follow-up.
BMC Med Imaging
January 2025
Department of Ultrasound Medicine, First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China.
Background: Langerhans cell histiocytosis (LCH) is a rare disease, most prevalent in children. Ultrasound is a noninvasive, cheap, and widely available technique. However, systematic elucidation of sonographic features of LCH and treatment related follow-up are relatively few, resulting in overall underestimation of the clinical value of ultrasound in diagnosing and monitoring LCH.
View Article and Find Full Text PDFBlood Lactate as a Metabolic Biomarker of Anaerobic Vocal Capacity: A Pilot Study.
J Voice
January 2025
Department of Speech, Language, and Hearing Sciences, Auburn University, Auburn, AL.
Purpose: Blood lactate concentration is commonly used to assess metabolic demand and skeletal muscle training response. The objective of the pilot study was to investigate if a change in blood lactate was detectable in an anaerobically designed vocal demand task vocal capacity anaerobic task (VCAT) and determine if the developed vocal demand task may assess the anaerobic capacity of the voice musculature, like anaerobic power tests commonly used in applied exercise science.
Methods: A prospective repeated measures study quantified blood lactate concentration preVCAT and postVCAT in vocally healthy adults.
The Protocol for the Multi-Ethnic, multi-centre raNdomised controlled trial of a low-energy Diet for improving functional status in heart failure with Preserved ejection fraction (AMEND Preserved).
BMJ Open
January 2025
Department of Cardiovascular Sciences, University of Leicester and the National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, Leicester LE3 9QP, UK
Introduction: Heart failure with preserved ejection fraction (HFpEF) is characterised by severe exercise intolerance, particularly in those living with obesity. Low-energy meal-replacement plans (MRPs) have shown significant weight loss and potential cardiac remodelling benefits. This pragmatic randomised trial aims to evaluate the efficacy of MRP-directed weight loss on exercise intolerance, symptoms, quality of life and cardiovascular remodelling in a multiethnic cohort with obesity and HFpEF.
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